Sleep Tracker: Phases, Quality, Correlations — Offline HTML

Sleep Tracker: Phases, Quality, Correlations — Offline HTML

HOW YOUR LIFESTYLE AFFECTS YOUR SLEEP — BASED ON YOUR OWN DATA

Keep a sleep journal — the tracker computes real duration (across midnight), accumulated debt and shows quality correlations with workouts, coffee and screens.

EXAMPLE FROM THE SCREENSHOT (real calculation of the program):
• Bedtime 23:30, wake 07:00 → 7.5 hours of sleep
• Quality 4/5, mood 4/5
• Sleep debt: +2.5 h over a week (at a 7.5 h/night norm)

WHAT´S INSIDE (one index.html file):
• Duration across midnight — correct for late bedtimes
• Quality, mood and energy on a 1-5 scale
• Correlations: comparing quality on days with/without training, coffee, screens
• Accumulated sleep debt relative to the norm
• Best and worst days
• A journal of all nights with CSV export for a doctor
• Data stored locally — full privacy

WHO IT´S FOR:
People tracking their health and recovery. Recovery tracking is a growing niche.

FORMAT: one HTML file, works offline, data never leaves your device. Instant file delivery after payment.